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Finding the Fourth Proportional to 5,920.86, 8,879.92 and 2,632.16

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Solution

The fourth proportional to 5,920.86, 8,879.92 and 2,632.16 is: 3,947.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,920.86 : 8,879.92 = 2,632.16 : x
  2. Step 2: Convert to fraction form
    5,920.86/8,879.92 = 2,632.16/x
  3. Step 3: Cross multiply
    5,920.86x = 8,879.92 × 2,632.16
  4. Step 4: Simplify right side
    5,920.86x = 23,373,325.83
  5. Step 5: Solve for x
    x = 23,373,325.83/5,920.86
  6. Step 6: Final answer
    x = 3,947.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.